Influence of thermal effects to pollutant dispersion in idealized street canyon: numerical study
DOI:
https://doi.org/10.26577/JMMCS.2022.v113.i1.13Keywords:
Air pollution, RANS, mathematical model, hedge barriers, concentration, temperatureAbstract
In this work, we numerically investigate the process of atmospheric air pollution at various values of the road temperature in idealized urban canyons. To solve this problem, the Reynolds-averaged Navier-Stokes equations (RANS) were used. Closing this system of equations required the use of various turbulent models. The verification of the mathematical model and the numerical algorithm was carried out using a test problem. The results obtained using various turbulent models were compared with experimental data and calculated data of other authors. The main problem considered in this paper is characterized as follows: estimation of emissions of pollutants between buildings using different types of hedge barriers (continuous and intermittent) at different temperatures. The results have shown that the presence of hedge barriers along the roads significantly reduces the concentration of harmful substances in the air. The use of a grass barriers with a total height of 0.1H leads to a decrease in the concentration level to a section X = 0.05H by more than 1.5 times compared with the case of a complete absence of protective barriers. In addition, the temperature conditions (in this case, TH = 305K) also reduce the concentration value by almost 2 times. Increasing the temperature at the side of the road using the barrier reduces the spread and deposition of pollutants
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from the activities of industrial facilities: Numerical study" , Journal of Cleaner Production, 282 (2021): 125239.
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[2] Pu Y., Yang C., "Estimating urban roadside emissions with an atmospheric dispersion model based on in-field
[3] Zauli Sajani S., Trentini A., Rovelli S., Ricciardelli I., Marchesi S., MacCone C., Bacco D., Ferrari S., Scotto F., ZigolaC., Cattaneo A., Cavallo D.M., Lauriola P., Poluzzi V., Harrison R.M.m, "Is particulate air pollution at the front door a good proxy of residential exposure?" , Environ. Pollut., 213 (2016): 347–358.
[4] Wu X., Nethery R.C., Sabath B.M., Braun D., Dominici F., "Air pollution and COVID-19 mortality in the United States: Strengths and limitations of an ecological regression analysis" , Sci. Adv., 6 (2020): eabd4049.
[5] Kumar P., de Fatima A.M., Ynoue R.Y., Fornaro A., de Freitas E.D., Martins J., Martins L.D., Albuquerque T., Zhang Y., Morawska L., New directions: from biofuels to wood stoves: the modern and ancient air quality challenges in the megacity of Sau Paulo" , Atmos. Environ., 140 (2016): 364–369.
[6] Kaur S., Nieuwenhuijsen M.J., Colvile R.N., "Fine particulate matter and carbon monoxide exposure concentrations in urban street transport microenvironments" , Atmos. Environ., 41(23) (2007): 4781–4810.
[7] Gallagher J., Lago C., "How parked cars affect pollutant dispersion at street level in an urban street canyon? A CFD modelling exercise assessing geometrical detailing and pollutant decay rates" , Sci. Total Environ., 651 (2019): 2410–2418
8] Elbir T., Kara M., Bayram A., Altiok H., Dumanoglu Y., "Comparison of predicted and observed PM10 concentrations in several urban street canyons" , Air Qual Atmos Health 4(2) (2011): 121–131.
[9] Ganguly R., Broderick B.M., "Estimation of CO concentrations for an urban street canyon in Ireland" , Air Qual Atmos Health 3(4) (2010): 195–202.
[10] Amini S., Ahangar F.E., Schulte N., Venkatram A., "Using models to interpret the impact of roadside barriers on near-road air quality" , Atmos. Environ. 138 (2016): 55–64.
[11] Baldauf R., Thoma E., Khlystov A., Isakov V., Bowker G., Long T.R., "Snow. Impacts of noise barriers on near-road air quality" , Atmos. Environ., 42(32) (2008): 7502–7507.
[12] Schulte N., Snyder M., Isakov V., Heist D., Venkatram A., ":Effects of solid barriers on dispersion of roadway emissions" , Atmos. Environ., 97 (2014): 286–295.
[13] Steffens J.T., Heist D.K., Perry S.G., Zhang K.M., "Modeling the effects of a solid barrier on pollutant dispersion under various atmospheric stability conditions" , Atmos. Environ., 69 (2013): 76–85.
[14] Amorim J.H., Valente J., Casc˜ao P., Rodrigues V., Pimentel C., Miranda A.I., Borrego C., "Pedestrian exposure to air pollution in cities: modeling the effect of roadside trees" , Adv. Meteorol., (2013): 1–7.
[15] Deshmukh P., Isakov V., Venkatram A., Yang B., Zhang K.M., Logan R., Baldauf R., The effects of roadside vegetation characteristics on local, near-road air quality" , Air Qual Atmos Health, 12(3) (2019): 259–270.
[16] Gromke C., Jamarkattel N., Ruck B., "Influence of roadside hedgerows on air quality in urban street canyons" , Atmos. Environ., 139 (2016): 75–86.
[17] Perini K., Ottel´e M., Fraaij A.L.A., Haas E.M., Raiteri R., Vertical greening systems and the effect on air flow and temperature on the building envelope" , Build. Environ., 46(11) (2011): 2287–2294.
[18] McNabola A., Broderick B.M., Gill L.W., "Reduced exposure to air pollution on the boardwalk in Dublin, Ireland. Measurement and prediction" , Environ. Int., 34(1) (2008): 86–93.
[19] Gallagher J., Gill L.W., McNabola A. "Numerical modelling of the passive control of air pollution in asymmetrical urban street canyons using refined mesh discretization schemes" , Build Environ, 56 (2012): 232–240
[20] Finn D., Clawson K.L., Carter R.G., Rich J.D., Eckman R.M., Perry S.G., Isakov V., Heist D.K., "Tracer studies to
characterize the effects of roadside noise barriers on near-road pollutant dispersion under varying atmospheric stability conditions" , Atmos. Environ., 44(2) (2010): 204–214.
[21] Abhijith K.V., Gokhale S., "Passive control potentials of trees and onstreet parked cars in reduction of air pollution exposure in urban street canyons" , Environ. Pollut., 204 (2015): 99–108.
[22] Afiq W.M.Y., Azwadi C.S.N., Saqr K.M., "Effects of buildings aspect ratio, wind speed and wind direction on flow structure and pollutant dispersion in symmetric street canyons: a review" , Int. J. Mech. Mater. Eng., 7(2) (2012): 158–165.
[23] Vos P.E.J., Maiheu B., Vankerkom J., Janssen S., "Improving local air quality in cities: to tree or not to tree?" , Environ. Pollut., 183 2013): 113–122.
[24] Salim S.M., Cheah S.C., Chan A., "Numerical simulation of dispersion in urban street canyons with avenue-like tree plantings: comparison between RANS and LES" , Build. Environ., 46 (2011): 1735–1746.
[25] Tong Z., Baldauf R.W., Isakov V., Deshmukh P., Zhang K.M., "Roadside vegetation barrier designs to mitigate near-road air pollution impacts" , Sci Total Environ, 541 (2016): 920–927.
[26] Steffens J.T., Wang Y.J., Zhang K.M., "Exploration of effects of a vegetation barrier on particle size distributions in a near-road environment" , Atmos. Environ., 50 (2012): 120–128.
[27] Ranasinghe D., Lee E.S., Zhu Y., Frausto-Vicencio I., Choi W., Sun W., Paulson S.E., Effectiveness of vegetation and sound wallvegetation combination barriers on pollution dispersion from freeways under early morning conditions" , Sci Total Environ 658 (2019): 1549–1558.
[28] Errebai F.B., Derradji L. & Amara M., "Thermal Behaviour of a Dwelling Heated by Different Heating Systems" Energy Procedia, 107 (2017): 144–149. doi:10.1016/j.egypro.2016.12.153
[29] Memon R.A., Leung D.Y.C. & Liu C.-H., "Effects of building aspect ratio and wind speed on air temperatures in urban-like street canyons" , Building and Environment, 45(1) (2010): 176–188. doi:10.1016/j.buildenv.2009.05.015
[30] Memon R.A., Leung D.Y.C., Chunho LIU, "A review on the generation, determination and mitigation of Urban Heat Island" , Journal of Environmental Sciences, 20(1) (2008): 120–128. doi:10.1016/s1001-0742(08)60019-4
[31] Oke T.R., Boundary Layer Climates Routledge, (New York, 1987).
[32] Kikumoto H., Ooka R., "Large-eddy simulation of pollutant dispersion in a cavity at fine grid resolutions" , Build Environ 127 (2018): 127–137.
[33] Issakhov A., Omarova P., "Modeling and analysis of the effects of barrier height on automobiles emission dispersion" ,Journal of Cleaner Production, 296 (2021): 126450.
[34] Issakhov A., Alimbek A. & Issakhov As., "A numerical study for the assessment of air pollutant dispersion with chemical reactions from a thermal power plant" , Engineering Applications of Computational Fluid Mechanics, (2020). DOI:10.1080/19942060.2020.1800515
[35] Issakhov A., Bulgakov R., Zhandaulet Y., "Numerical simulation of the dynamics of particle motion with different sizes" , Engineering Applications of Computational Fluid Mechanics, 13(1) (2019): 1–25.
[36] Issakhov A., Alimbek A., Zhandaulet Y., "The assessment of water pollution by chemical reaction products
from the activities of industrial facilities: Numerical study" , Journal of Cleaner Production, 282 (2021): 125239.
doi.org/10.1016/j.jclepro.2020.125239
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How to Cite
Issakhov, A., Yang, T., & Omarova, P. (2022). Influence of thermal effects to pollutant dispersion in idealized street canyon: numerical study. Journal of Mathematics, Mechanics and Computer Science, 113(1). https://doi.org/10.26577/JMMCS.2022.v113.i1.13
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Applied Mathematics
